BTRFS info (device loop4): using sha256 (sha256-ce) checksum algorithm BTRFS info (device loop4): using free space tree BTRFS info (device loop4): enabling ssd optimizations ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7573 at fs/read_write.c:504 __kernel_write_iter+0x508/0x5f8 Modules linked in: CPU: 1 PID: 7573 Comm: syz-executor.4 Not tainted 6.1.51-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __kernel_write_iter+0x508/0x5f8 lr : __kernel_write_iter+0x504/0x5f8 fs/read_write.c:504 sp : ffff80001f4c74c0 x29: ffff80001f4c75a0 x28: ffff700003e98ea0 x27: ffff80001f4c7640 x26: dfff800000000000 x25: fffffffffffffff7 x24: 1fffe00022d2763f x23: ffff00011693b1fc x22: ffff000120d01008 x21: dfff800000000000 x20: ffff00011693b180 x19: 00000000000a801d x18: ffff80001f4c7560 x17: ffff80000a1bb324 x16: ffff800012072600 x15: 0000000000029b87 x14: 1ffff00002b160b0 x13: dfff800000000000 x12: 0000000000040000 x11: 0000000000002295 x10: ffff8000274d6000 x9 : ffff800008a386dc x8 : 0000000000002296 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000011 x3 : 0000000000000001 x2 : ffff000120d01008 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: __kernel_write_iter+0x508/0x5f8 __kernel_write fs/read_write.c:537 [inline] kernel_write+0x1b0/0x2f0 fs/read_write.c:558 write_buf fs/btrfs/send.c:591 [inline] send_header fs/btrfs/send.c:709 [inline] send_subvol+0x174/0x3f0c fs/btrfs/send.c:7675 btrfs_ioctl_send+0x1c40/0x21b4 fs/btrfs/send.c:8041 _btrfs_ioctl_send+0x314/0x468 fs/btrfs/ioctl.c:5242 btrfs_ioctl+0x638/0xb08 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 irq event stamp: 84120 hardirqs last enabled at (84119): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (84119): [] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194 hardirqs last disabled at (84120): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (84084): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (84082): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---